Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6431ccce2e62dc…

MALICIOUS

PDF

565.1 KB Created: 2022-02-04 14:53:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 5ed41de8c9d71be8c4735419458afd6b SHA-1: cc8e8d42eac1b2ff801f38938924bfb1ec45a3ae SHA-256: 2b6431ccce2e62dc555268792315274c4da385ce626aad080cf3f4b36c2c9ae9
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5031

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://colod.co.za/XSRYdR1H?utm_term=esl+worksheets+pdf+free PDF link annotation
    • https://jnvhardoi.org/ckfinder/userfiles/files/lirujesawirilifivawut.pdfIn PDF document text
    • http://aock.kz/app/webroot/js/kcfinder/upload/files/49448123776.pdfIn PDF document text
    • https://demetraproject.eu/ckfinder/userfiles/files/48485958501.pdfIn PDF document text
    • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/9676516706a78d6f813846fb57ce388b/30065955003.pdfIn PDF document text
    • http://customartdirect.com/kcfinder/upload/files/18553453252.pdfIn PDF document text
    • http://nktrading.qa/file/files/xekamejapinojetulibej.pdfIn PDF document text
    • http://preciz.com/uploads/wysiwyg/files/pasotegesipiw.pdfIn PDF document text
    • https://bandotrading.it/uploads/file/60320150870.pdfIn PDF document text
    • https://www.iccct21.scrs.in/kcfinder/upload/files/9345835013.pdfIn PDF document text
    • https://thietkeweblongan.com/upload/files/25786526837.pdfIn PDF document text
    • http://ozona.pt/wysiwygfiles/file/kabigugivo.pdfIn PDF document text
    • http://hawaiianhunareiki.it/file/rudenanusibadudememexono.pdfIn PDF document text
    • https://eurodens.pl/files/editor/files/24291609103.pdfIn PDF document text
    • http://wijnhuis-vaessen.nl/site/data/ws/files/winatisapeziruvirim.pdfIn PDF document text
    • http://habitat3.eu/userfiles/files/petomalilere.pdfIn PDF document text
    • http://aviapartner.biz/js/ckfinder/userfiles/files/wexesokajag.pdfIn PDF document text
    • http://lamexmarket.com/uploads/files/wasonen.pdfIn PDF document text
    • http://blueleaves.ru/userfiles/file/10110399356.pdfIn PDF document text
    • https://apotekatia.ba/fajlovi/kinugefukiwirafi.pdfIn PDF document text
    • https://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/36036791235.pdfIn PDF document text
    • http://cl-pub.com/files/files/29219439093.pdfIn PDF document text
    • http://mega-gold.com/userfiles/files/nuregabawilolelobiput.pdfIn PDF document text
    • https://doctmcooper.com/userfiles/files/junejol.pdfIn PDF document text
    • https://www.verimevzabavu.cz/ckfinder/userfiles/files/gozevobamopobirege.pdfIn PDF document text
    • http://bensonlandscape.com/editorData/file/wiwubotuxovolojudok.pdfIn PDF document text
    • http://gearonlaw.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/91502277173.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00086bf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86BF1 16468 bytes
SHA-256: f0399a3d5724c7088988ae8546ea5465a96248c8315a2a22b3b64f18add3768d
font_01_sfnt_off00089698.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89698 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0008adb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ADB8 10396 bytes
SHA-256: 9054622a475489234891792407b763dca4936bde38374e6a2257851a390c1245